Article History
Received: 27 June 2018
Accepted: 23 October 2018
First Online: 29 October 2018
Ethics approval and consent to participate
: IRB approval was obtained from Nihon University Itabashi Hospital (RK-180213-14). The ethical approval for this research included an opt-out from the requirements for informed consent and information disclosure.
: All patients consented to the publication of their data.
: The authors declare that they have no competing interests.
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